mythscreenstack.h

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#ifndef MYTHSCREEN_STACK_H_
#define MYTHSCREEN_STACK_H_
 
#include <QVector>
#include <QObject>
 
#include "libmythbase/mythchrono.h"
#include "libmythui/mythuiexp.h"
 
class QString;
 
class MythScreenType;
class MythMainWindow;
class MythPainter;
 
class MUI_PUBLIC MythScreenStack : public QObject
{
  Q_OBJECT
 
  public:
    MythScreenStack(MythMainWindow *parent, const QString &name,
                    bool main = false);
    ~MythScreenStack() override;
 
    virtual void AddScreen(MythScreenType *screen, bool allowFade = true);
    virtual void PopScreen(MythScreenType *screen = nullptr, bool allowFade = true,
                           bool deleteScreen = true);
 
    virtual MythScreenType *GetTopScreen(void) const;
 
    void GetDrawOrder(QVector<MythScreenType *> &screens);
    void GetScreenList(QVector<MythScreenType *> &screens);
    void ScheduleInitIfNeeded(void);
    void AllowReInit(void) { m_doInit = true; }
    int TotalScreens() const;
 
    void DisableEffects(void) { m_doTransitions = false; }
    void EnableEffects(void);
 
    QString GetLocation(bool fullPath) const;
 
    static MythPainter *GetPainter(void);
 
  signals:
    void topScreenChanged(MythScreenType *screen);
 
  private slots:
    void doInit(void);
 
  protected:
    virtual void RecalculateDrawOrder(void);
    void DoNewFadeTransition();
    void CheckNewFadeTransition();
    void CheckDeletes(bool force = false);
 
    QVector<MythScreenType *> m_children;
    QVector<MythScreenType *> m_drawOrder;
 
    MythScreenType *m_topScreen {nullptr};
 
    bool m_doTransitions        {false};
    bool m_doInit               {false};
    bool m_initTimerStarted     {false};
    bool m_inNewTransition      {false};
    MythScreenType *m_newTop    {nullptr};
 
    QVector<MythScreenType *> m_toDelete;
};
 
#endif